tidealmanac

Roche Harbor, San Juan Island, WA tide chart

NOAA station 9449834 · Subordinate station · Datum MLLW · Local time (America/Los_Angeles)

Change stationFull year 2026

Today · Mon, Oct 26

High tideLow tide
  1. High6:23 AM7.4 ft2.26 m
  2. Low11:10 AM5.2 ft1.60 m
  3. High4:38 PM7.7 ft2.35 m
  4. Low11:39 PM-1.9 ft-0.57 m

This is a subordinate station: NOAA predicts its highs and lows from a nearby reference station and publishes no curve for it. Nothing is interpolated.

Next high6:23 AM7.4 ft2.26 m · in 5h 40m
Next low11:10 AM5.2 ft1.60 m · in 10h 27m
Range today9.6 ft2.92 m4 predicted tides today
MoonFullFull moon · spring tides

October 2026

Full year
Date1st tide2nd tide3rd tide4th tide
1Thu
2:20 AMLow · -1.6 ft-0.48 m
10:19 AMHigh · 7.1 ft2.17 m
2:38 PMLow · 6.5 ft1.97 m
7:30 PMHigh · 7.2 ft2.19 m
2Fri
3:14 AMLow · -1.5 ft-0.47 m
11:45 AMHigh · 7.2 ft2.19 m
3:52 PMLow · 6.9 ft2.11 m
8:02 PMHigh · 6.9 ft2.10 m
3Sat
4:15 AMLow · -1.2 ft-0.37 m
1:07 PMHigh · 7.3 ft2.23 m
5:42 PMLow · 7.0 ft2.13 m
9:01 PMHigh · 6.5 ft1.98 m
4Sun
5:24 AMLow · -0.7 ft-0.22 m
2:08 PMHigh · 7.5 ft2.28 m
8:12 PMLow · 6.5 ft1.97 m
10:47 PMHigh · 6.0 ft1.84 m
5Mon
6:35 AMLow · -0.2 ft-0.07 m
2:53 PMHigh · 7.6 ft2.31 m
8:55 PMLow · 5.6 ft1.71 m
6Tue
12:32 AMHigh · 5.8 ft1.77 m
7:43 AMLow · 0.3 ft0.09 m
3:29 PMHigh · 7.6 ft2.33 m
9:27 PMLow · 4.6 ft1.39 m
7Wed
2:11 AMHigh · 5.8 ft1.78 m
8:41 AMLow · 0.9 ft0.26 m
3:59 PMHigh · 7.7 ft2.34 m
9:58 PMLow · 3.4 ft1.04 m
8Thu
3:36 AMHigh · 6.1 ft1.85 m
9:31 AMLow · 1.6 ft0.49 m
4:24 PMHigh · 7.6 ft2.33 m
10:29 PMLow · 2.3 ft0.69 m
9Fri
4:46 AMHigh · 6.4 ft1.96 m
10:15 AMLow · 2.5 ft0.75 m
4:45 PMHigh · 7.6 ft2.31 m
11:00 PMLow · 1.2 ft0.36 m
10Sat
5:46 AMHigh · 6.8 ft2.06 m
10:57 AMLow · 3.4 ft1.03 m
5:03 PMHigh · 7.5 ft2.28 m
11:32 PMLow · 0.3 ft0.08 m
11Sun
6:41 AMHigh · 7.1 ft2.16 m
11:39 AMLow · 4.3 ft1.32 m
5:21 PMHigh · 7.4 ft2.24 m
12Mon
12:05 AMLow · -0.4 ft-0.13 m
7:34 AMHigh · 7.3 ft2.23 m
12:24 PMLow · 5.2 ft1.58 m
5:42 PMHigh · 7.2 ft2.19 m
13Tue
12:39 AMLow · -0.8 ft-0.24 m
8:27 AMHigh · 7.5 ft2.27 m
1:14 PMLow · 5.9 ft1.80 m
6:04 PMHigh · 7.0 ft2.12 m
14Wed
1:15 AMLow · -0.9 ft-0.27 m
9:23 AMHigh · 7.5 ft2.29 m
2:12 PMLow · 6.4 ft1.96 m
6:28 PMHigh · 6.7 ft2.04 m
15Thu
1:55 AMLow · -0.7 ft-0.21 m
10:23 AMHigh · 7.5 ft2.28 m
3:29 PMLow · 6.7 ft2.05 m
6:51 PMHigh · 6.4 ft1.95 m
16Fri
2:39 AMLow · -0.3 ft-0.09 m
11:31 AMHigh · 7.4 ft2.26 m
17Sat
3:29 AMLow · 0.2 ft0.06 m
12:37 PMHigh · 7.4 ft2.25 m
18Sun
4:26 AMLow · 0.7 ft0.22 m
1:32 PMHigh · 7.4 ft2.25 m
19Mon
5:30 AMLow · 1.2 ft0.36 m
2:13 PMHigh · 7.4 ft2.25 m
9:09 PMLow · 5.4 ft1.66 m
11:10 PMHigh · 5.1 ft1.57 m
20Tue
6:34 AMLow · 1.6 ft0.47 m
2:41 PMHigh · 7.4 ft2.25 m
9:16 PMLow · 4.8 ft1.47 m
21Wed
12:42 AMHigh · 5.1 ft1.56 m
7:32 AMLow · 1.9 ft0.58 m
3:00 PMHigh · 7.4 ft2.24 m
9:24 PMLow · 4.0 ft1.22 m
22Thu
2:09 AMHigh · 5.3 ft1.62 m
8:22 AMLow · 2.4 ft0.72 m
3:15 PMHigh · 7.4 ft2.25 m
9:40 PMLow · 3.0 ft0.90 m
23Fri
3:25 AMHigh · 5.7 ft1.75 m
9:06 AMLow · 2.9 ft0.89 m
3:31 PMHigh · 7.5 ft2.27 m
10:02 PMLow · 1.7 ft0.52 m
24Sat
4:30 AMHigh · 6.3 ft1.91 m
9:47 AMLow · 3.6 ft1.10 m
3:51 PMHigh · 7.6 ft2.30 m
10:30 PMLow · 0.4 ft0.12 m
25Sun
5:28 AMHigh · 6.9 ft2.09 m
10:28 AMLow · 4.4 ft1.34 m
4:13 PMHigh · 7.6 ft2.33 m
11:02 PMLow · -0.9 ft-0.26 m
26Mon
6:23 AMHigh · 7.4 ft2.26 m
11:10 AMLow · 5.2 ft1.60 m
4:38 PMHigh · 7.7 ft2.35 m
11:39 PMLow · -1.9 ft-0.57 m
27Tue
7:17 AMHigh · 7.8 ft2.38 m
11:54 AMLow · 6.0 ft1.83 m
5:04 PMHigh · 7.7 ft2.36 m
28Wed
12:20 AMLow · -2.5 ft-0.77 m
8:14 AMHigh · 8.1 ft2.45 m
12:43 PMLow · 6.7 ft2.03 m
5:33 PMHigh · 7.7 ft2.34 m
29Thu
1:06 AMLow · -2.7 ft-0.84 m
9:14 AMHigh · 8.1 ft2.48 m
1:40 PMLow · 7.1 ft2.16 m
6:04 PMHigh · 7.5 ft2.28 m
30Fri
1:56 AMLow · -2.5 ft-0.77 m
10:18 AMHigh · 8.1 ft2.47 m
2:51 PMLow · 7.3 ft2.22 m
6:39 PMHigh · 7.1 ft2.17 m
31Sat
2:51 AMLow · -2.0 ft-0.60 m
11:23 AMHigh · 8.1 ft2.46 m
4:33 PMLow · 7.1 ft2.17 m
7:31 PMHigh · 6.6 ft2.01 m
Thu12:20 AM-1.6 ft-0.48 m10:19 AM7.1 ft2.17 m2:38 PM6.5 ft1.97 m7:30 PM7.2 ft2.19 mFri23:14 AM-1.5 ft-0.47 m11:45 AM7.2 ft2.19 m3:52 PM6.9 ft2.11 m8:02 PM6.9 ft2.10 mSat34:15 AM-1.2 ft-0.37 m1:07 PM7.3 ft2.23 m5:42 PM7.0 ft2.13 m9:01 PM6.5 ft1.98 mSun45:24 AM-0.7 ft-0.22 m2:08 PM7.5 ft2.28 m8:12 PM6.5 ft1.97 m10:47 PM6.0 ft1.84 mMon56:35 AM-0.2 ft-0.07 m2:53 PM7.6 ft2.31 m8:55 PM5.6 ft1.71 mTue612:32 AM5.8 ft1.77 m7:43 AM0.3 ft0.09 m3:29 PM7.6 ft2.33 m9:27 PM4.6 ft1.39 mWed72:11 AM5.8 ft1.78 m8:41 AM0.9 ft0.26 m3:59 PM7.7 ft2.34 m9:58 PM3.4 ft1.04 mShow the whole month

Heights relative to MLLW; times local to the station. Predictions from NOAA CO-OPS; not for navigation.

Nearby stations

Distance from this station. A nearer station is not necessarily the right one for your shore.
Hanbury Point, Mosquito Pass, San Juan I.WA · NOAA 9449828 · 2 mi (3 km)Waldron Island, Puget SoundWA · NOAA 9449746 · 8 mi (12 km)Friday Harbor, San Juan IslandWA · NOAA 9449880 · 8 mi (13 km)Kanaka Bay, San Juan IslandWA · NOAA 9449856 · 9 mi (15 km)